CN103337035A - Method for determining site selection of urban center system based on quantitative evaluation - Google Patents

Abstract

The invention discloses a method for determining site selection of an urban center system based on quantitative evaluation, which uses the spatial suitability as a determination index for site selection of the urban center system. The method comprises the following steps of drawing an evaluation underlying graph of main urban area and street data information according to urban plane topographic data; constructing a quantitative evaluation index system, selecting an evaluation method, and setting the weight; then collecting data required by various evaluation indexes, carrying out single factor evaluation on the underlying graph, coinciding, and drawing a comprehensive evaluation analysis graph; and finally determining a spatial site selection location which is suitable for planning and distributing the center system according to evaluation results. The method disclosed by the invention adopts a completely quantitative investigating, calculating and computing method, provides a basis for relevant constructions such as urban comprehensive planning and the like, helps to determine the spatial location which is best suitable for construction of the center system in urban construction, and improves the implementation effect of urban planning construction, thereby utilizing precious urban construction resources more effectively and more reasonably.

Description

Definite down town system site selecting method based on quantitative evaluation

Technical field

The present invention relates to the city planning technical field, particularly relate to a kind of definite down town system site selecting method based on quantitative evaluation.

Background technology

The control of the layout of down town system is that Chinese Urbanization enters the middle and later periods, in the utilization of resources practice demand of a plurality of centers sustainable development in city under the background that increases of intensive and environmental pressure progressively.Since reforming and opening up to the outside world 30 years, Urbanization in China is very rapid, becomes very significant phenomenon and the feature of social development.Urban population total amount, the level of urbanization are from be in the fast rise state of development always, and urbanization fast brings the rapid increase of city space, must cause the corresponding sharp increase of down town system.The factor such as develop rapidly of new city construction in recent years,, urban service industry has also been brought new driving force and tractive force for the development of downtown area.Because the difference of city many-sided factors such as general location, natural conditions, regional environment, Social Culture in the whole world, regional extent, the developing stage of center, China megalopolis system has nothing in common with each other with degree of ripeness: formed relative ripe network-like down town system as Beijing, Shanghai; City such as Hong Kong and Guangzhou is in the structural development stage of " two is main how secondary "; Cities such as Nanjing, Hangzhou, Shenzhen, Zhengzhou are developed to higher direction from the centric architecture of " one-main-multi-auxiliary ".In the system fast development of center, China megalopolis, the research of system aspect, down town just has been in the starting stage, domestic technique method achievement is less relatively, is difficult to play the effect of instructing the down town system to build.

From in the world, many for the space structure research of down town system, dabble but the technology of addressing seldom had.The multinuclear study of heart says that (Multiple Nuclei Model) proposed in 1933 by MacKenzie (RDMckenzie) at first.United States geographical scholar Harris (CDHarris) and Liv Ullmann (ELUllman) have developed this theory in 1945.They think: concentric circles theory and sector theory, think that all the city center has only one, but in the city of reality, often exist plural city center to also have several places subcenter beyond perhaps in a city center.At the commercial layout of urban inner, the structure of commercial center has been inquired into by the bid-land rent analysis to different threshold functions by Ghana (B.J.Garner, 1966), constructs the spatial model of different brackets commercial center.He Fu (D.L.Huff, 1964) has proposed a formula that calculates the retailing scope from the theory of probability angle, i.e. retail gravity model, and be used for distinguishing each overlapping market space.(Berry, 1963) are thought and are had 3 kinds of business type districts in the shellfish, i.e. multi-level commercial center, banded commercial network and specialized shopping centre, three kinds of business type districts intersect, infiltration, form the commercial space in city.Davis (Davies, 1972) proposes a compages pattern once at central business district retail trade layout.He thinks that traditional down town shopping activity is had the greatest impact by general convenience, and rounded distribution is to embody its grade situation and relevant profit potential; Other commercial affairs are subjected to having the greatest impact of arterial highway convenience; Some special functions are subjected to having the greatest impact of special convenience; The influence of three kinds of convenience factors is superimposed, then forms comp comprehensive layout's pattern of central business district retail trade.Davis (Davies, 1976) another famous theory is also proposed, it is heart hierarchical organization evolution in the city commercial, think that the heart hierarchical system is by the level Four system corresponding to difference income area of initial relative equilibrium in the city commercial, constantly differentiation, integration, last high, medium and low income residential district forms different market place hierarchical organizations respectively.

In sum, the aspect that model is quantitative not being accomplished in down town system addressing both at home and abroad at present, layouts basically or the perception thinking in old city planning of central district and new down town, lacks the rational layout of planning and plan as a whole.

Summary of the invention

Goal of the invention: the invention provides a kind of definite down town system site selecting method based on quantitative evaluation, definite method that can solve system addressing in down town in the prior art exist subjectivity strong, be difficult to quantize, not easy-operating problem.

Technical scheme: a kind of definite down town system site selecting method based on quantitative evaluation, as the testing index of determining down town system addressing, at first draw the evaluation base map that block, main city data message is arranged according to city plane earth graphic data with space suitability key element; Make up the quantitative evaluation index system then, select evaluation method, weight is set; Again, collect every evaluation index desired data, carry out the single-factor evaluation to estimating base map, carry out superimposedly again, draw comprehensive evaluation analysis figure; According to evaluation result, determine to be fit to the addressing position, space of programming and distribution center system at last.

The present invention adopts technique scheme, have following beneficial effect: 1) accountability and operability: with in the past from comparing based on the theoretical method of planning of central district positions such as " concentric circles theory ", " sector theory " of ideal model, " multi-nuclei theory ", the present invention adopts investigation standard, statistical precision and the computing method of the complete rational faculty, and its operating process and technological achievement have tangible objectivity, accountability.2) rationality and intuitive: with compare with the theoretical method of planning of central district positions such as in the past " heart hierarchical organization evolution in the city commercial ", " retail gravity model ", the present invention is because support city space and society, ecology and economic joint-action mechanism, possesses intuitive more, the space mechanism kernel that reflection down town system forms, make that the system addressing of resulting center is more accurate, technological achievement is more reasonable.3) specific aim and accuracy: with in the past system position, center determine that method compares, the present invention proposes the pointed technical method that position, system planning region, center is determined that is used for to city-level master center, the classification of city-level sub-center, the definite process that makes the down town system build the position has more rationality, accuracy, help urban planning authority in the city construction engineering practice, to determine the most suitable regional location that the center is built, the urban construction resource of efficient and rational utilization preciousness of carrying out.

Description of drawings

Fig. 1 is the process flow diagram of the embodiment of the invention;

Fig. 2 is the down town system addressing suitability evaluation index synoptic diagram of the embodiment of the invention;

Fig. 3 is the analytical hierarchy process structural representation of the embodiment of the invention;

Fig. 4 is the urban evaluation base map of the embodiment of the invention;

Fig. 5 (a) and (b), (c) are that the city single-factor traffic accessibility (B1) of the embodiment of the invention is estimated synoptic diagram; They are respectively traffic accessibility analysis (C1), subway light rail accessibility (C3), railway website accessibility (C4);

Fig. 6 is the city integrated index analysis synoptic diagram of the embodiment of the invention;

Fig. 7 is the down town system programming and distribution synoptic diagram of the embodiment of the invention.

Embodiment

Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.

Determine that below with reference to the position of center, Hangzhou system case and accompanying drawing explain technical scheme of the present invention; Fig. 1 is the process flow diagram of the embodiment of the invention; This method comprises the steps:

1) draw the evaluation base map that block, main city data message is arranged according to city plane earth graphic data, as shown in Figure 4:

1.1) obtain complete, city master city scope land used polar plot accurately;

1.2) be base map with master city, city scope land used polar plot, process data into the polar plot that only contains closed PL line block information.

2) make up the quantitative evaluation index system;

2.1) make up the quantitative evaluation index system: index system is divided into overall layer, system layer, state layer and four grade of key element layer, comprise several three grades of indexs and level Four basic factors index, covered 3 evaluation content that comprise economy, society and ecology; As shown in Figure 2;

The suitability evaluation key element of down town system addressing also has single-row restriction to build mandatory factor except above three major types, relates to the land used evaluation space result of important leverage with optimization;

The mandatory factor (A4) that restriction is built: since specific (special) requirements such as ecoscape, historical protective and airport flight, some area being forced to property prescribed limits construction, and the block that these factors relate to does not participate in estimating, and directly includes among the result of the index hierarchy of control;

1. ecoscape factor.At ecological sensitive areas and gallery peripheries such as the preferential large-scale massif of ecological environmental protection, water bodys, height, intensity, the density of space development construction there is the control requirement of strictness.Wetland have purify water, store flood-water for use in a drought, aqueous vapor regulate, keep special attitude service functions such as perching the habitat, wants strict protection on stream, some area even forbid all kinds of construction for strictness is unsuitable for developing the center that high strength is developed;

2. historical purple line factor.The history culture remnants is as a kind of special cultural landscape; have uniqueness, monopoly, scarcity, fragility and characteristics such as non-renewable; be difficult to after the destruction effectively be repaired, have high protection requirement equally, also want strict protection on stream.The urban history axis is looked Wen Baozi lines such as corridor, Historical Block, historical building area and periphery is built the control zone, to the character of land used, highly, style and features all proposes to coordinate requirement, is not suitable for building the excentral center of conventional commercial;

3. other prohibit high factor.Near all kinds of civilian, the military airfields block is subjected to the management and control requirement of flying height, and the microwave channel in city, area, high pressure corridor, the restriction of strictness is arranged in nature building height and land used.

2.2) choose method for quantitatively evaluating: with analytical hierarchy process down town system addressing is researched and analysed.It is decomposed into some effective levels to challenge, give quantificational expression according to the judgement of certain objective things with regard to the relative importance of each level, and utilize mathematical way to determine the numerical value of whole element relative importance order of expressing each layer, by the analysis of each level being derived the analysis to whole problem, as shown in Figure 3.

2.3) standard of indexization and Weight Determination;

2.3.1) standard of index processing

Because every achievement data dimension difference of down town system addressing suitability evaluation before actual computation, will be carried out comprehensive integration to these indexs earlier, all achievement datas of pre-service all must carry out nondimensionalization to be handled.If do not carry out standardization, relative with the index that standard deviation is less, each index with relatively large standard deviation then can imply relatively large weight in calculating.Just because of this, the difference on the span of index may cause the exaggerative of its weight.Therefore, consider the rationality of comparison, we carry out dimensionless to each index by standardization, exponentiate and three methods of threshold method and handle.

The standardized calculation formula is:

$X_i=\frac{x_i-\stackrel{\‾}{x}}{Q^2}$

x _iBe raw data,

Be mean value, Q ²Be variance, X ⁱBe data after the standardization.

The computing formula of index method is:

$X_i=\frac{x_i}{X_{0i}}$

x _iBe original value, X _OiBe maximal value, X _iBe index.

The computing formula of threshold method is:

$X_i=\frac{x_{\max }-x_i}{x_{\max }-x_{\min }}$

X _iBe the value after the conversion, x _MaxBe maximum sample value, x _MinBe smallest sample value, x _iBe original value.

Like this, namely do not change the substance of data message and the interdependence between the data, the relation between next step result and each index is not changed yet.

2.3.2) the index weight determines

Every index Weight Determination is main factor of evaluation in the suitability analysis of center system addressing, and its order of accuarcy is related to correctness and the science of evaluation result, so the index system weight is counted assignment and adopted analytical hierarchy process to determine weight.Because each layer index is different respectively for the weight of its last layer target, so, according to the hierarchy of index system, calculate the weight of each index respectively, calculation procedure is as follows:

1. work out weight judgment matrix table

If the information spinner of analytical hierarchy process, is quantized with numerical value by to the suitable scale of this introducing by the judgement of relative importance that each index in each level is compared in twos, thereby constitute the judgment matrix of each level.1～9 scale value such as following table 1 that TLSaaty proposes:

Table 1:Saaty scaling law and implication

Scale value	Implication
			1	Represent that factor relatively has equal importance in twos
3	Represent that one of factor comparison in twos is more important a little than another
		5	Represent that one of factor comparison in twos is obvious more important than another
7	Represent that one of factor comparison in twos is strong more important than another
		9	Represent that one of factor comparison in twos is extremely more important than another
2，4，6，8	The intermediate value of representing above-mentioned two adjacent judgements

In order to make the more accurate and science of result, can determine scale value by consultative expertise, and select the expert of relevant speciality to work out weight judgment matrix table that each matrix judgment value is got the geometrical mean of expert opinion.At last, adopt Delphi method to measure to the quantification of judgment matrix.

We are the calculating of example explanation index weight with urban culture accumulation B4, and three of cultural accumulation state index subordinate history culture remnants C9, commercial culture remnants C10, public psychology degree of recognition C11 determine that so the matrix of C9, C10, the relative B4 of C11 sees Table 3:

Table 2: cultural accumulation B4 composing indexes

The matrix of table 3:C9, C10, the relative B4 of C11

2. weighing computation method

A. calculate the continued product of every row element in the judgment matrix:

$M_2=\frac{11}{20}\×1\×\frac{11}{9}=0.6722$

$M_3=\frac{9}{20}\×\frac{9}{11}\×1=0.3682$

B. calculate n the root of M, n is the exponent number of judgment matrix

$\stackrel{\&OverBar;}{{\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002935999000041.png"\; state="\{\{state\}\}">W</figure-callout>}}_1}=\sqrt[3]{4.0404}=1.5927$

$\stackrel{\&OverBar;}{W_2}=\sqrt[3]{0.6722}=0.876$

$\stackrel{\&OverBar;}{W_3}=\sqrt[3]{0.3682}=0.7167$

C. with vector

Normalization, namely $W_i=\stackrel{\&OverBar;}{W_i}/\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}\stackrel{\&OverBar;}{W_i}$

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002935999000041.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\frac{1.5927}{1.5927+0.876+0.7167}=0.5$

$W_2=\frac{0.876}{1.5927+0.876+0.7167}=0.275$

$W_3=\frac{0.7167}{1.5927+0.876+0.7167}=0.225$

D. the eigenvalue of maximum λ of compute matrix _MAX

${\mathrm{\&lambda;}}_{\mathrm{MAX}}=\underset{i=1}{\overset{n}{\mathrm{\&Sigma;}}}\frac{{\left(B_{1}W\right)}_i}{{\mathrm{nW}}_i}=3.0247$

E. inspection sheet ordering consistance

The single order coincident indicator of level can check data matching degree, if Cl=0 represents that then judgment matrix satisfies crash consistency; Cl ≠ 0 and CR＜0.1 o'clock represents that judgment matrix has satisfied consistance, otherwise needs to adjust the scale value of judgment matrix, recomputates then, checks.CR=Cl/Rl wherein is called the ratio of consistance at random of judgment matrix, and Rl is the mean random coincident indicator, according to the form below 4 values.

Table 4: mean random coincident indicator

$\mathrm{Cl}=\frac{3.0247-3}{3-1}=0.0124\mathrm{CR}=\frac{0.0124}{0.58}=0.0214\&lang;0.1$

Last result has satisfied consistance, therefore, and urban culture accumulation index weight calculation result:

W _c9=0.5 W _c10=0.275 W _c11=0.225 λ _MAX＝3.0247 _CR＝0.0214

Adopt said method can determine the every index weight of suitability evaluation of different cities center system addressing, it should be noted that, not only the operation result fibrous root is according to the adjustment again of the weight coefficient of the different functions with liveliness proof of productivity, every index weight should have corresponding adjustment in different cities, requires and embody the requirement of each department specific function value balance with the space characteristics that adapts to different cities.

3) comprehensive evaluation analysis is carried out in the city

3.1) with vector base map data importing GIS, each closed block is treated as an evaluation unit;

3.2) the every factor of drafting in CAD; Use pooling feature in the GIS software to carry out fill order's level of factor evaluation after the assignment;

3.2.1) draw every factor and import GIS software at CAD earlier;

3.2.2) use the pooling feature in the GIS software that the factor is carried out the data processing;

3.2.3) value that buffering is obtained gets on by the spatial join function evaluation unit that is added to, and obtains single-factor index evaluation figure;

3.3) use the overlaying function in the GIS software to carry out the multi-stress evaluation analysis;

3.3.1) in GIS software, use overlaying function to carry out overlap-add procedure the value of every single-factor index evaluation, and get on by the spatial join function evaluation unit that is added to, obtain multi-stress index evaluation analysis chart;

3.4) use overlaying function in the GIS software and buffering function to superpose influence that ecological mandatory factor builds the center.

Can disassemble equally as the space suitability subregion evaluation of down town, Hangzhou system and to be indexs such as traffic accessibility, land price and removal cost, the comprehensive degree of service facility, cultural accumulation, landscape environment quality, settlement accessibility, and multiple-factors such as mandatory limit for height such as ecology, the legacy of history; Wherein, Fig. 5 (a) and (b), (c) are city single-factor traffic accessibility (B1) the evaluation synoptic diagram of the embodiment of the invention; They are respectively traffic accessibility analysis (C1), subway light rail accessibility (C3), railway website accessibility (C4); Fig. 6 is the city integrated index analysis figure of the embodiment of the invention.

4) determine the position of system position, down town by evaluation result:

In city integrated evaluation analysis Fig. 6, be basis for estimation with the shade that just is complementary with numerical value, mark at base map, judge the position that is fit to layout down town system in the city, and according to its social and economic condition, finally generate system planning region, down town bitmap, determine the position layout of urban planning and construction down town system.

In the present embodiment, the location of optimum construction center is curb line area, Yan'an.Area, Yan'an road is positioned at the center, old city, side, east, the West Lake, centuries be exactly in the ancient city, Hangzhou the shop stand in great numbers, the area of merchants gathered, stay large quantities of history culture remnants and deep cultural accumulation (C9), the reform and opening-up post-modernism is commercial to emerge, and has gathered the commercial building complex (C10) of large quantities of city-levels so far.Its commercial core status is rooted in the hearts of the people through long-term historical development, has very high public acceptance degree (C11).Martial arts circles's door of the north of a road, Yan'an end is as the important traffic hub in Hangzhou, and the south is hinge area, railway station (C4), and many light rails in city and traffic route are intersected in this (C3), makes the traffic accessibility leading in the urban district (C1) in area, Yan'an road.Simultaneously the littoral remarkable landscape environment quality in the West Lake also is the development of this area add much beauty to (C11), a large amount of cultural sight spots such as the West Lake ten scapes that distributing along the lake, and hope every lacustrine facies with Su Causeway, Bai Causeway, this makes center, Yan'an road fronting water and with a hill on the back (C12), has graceful elegant landscape environment, also attracted simultaneously a large amount of nonlocal visitors sightseeings of stopping, centered by distinguish service sector sufficient passenger flow be provided.

Secondly the location that is fit to the construction center is new city area, money river.The soil, this area is supplied with and is compared old city more abundant (C5), and land price is also cheaper, builds removal cost also now to few (C6).From traffic, new city area, money river also is the transport hub in Binjiang area, Hangzhou, International airport, contiguous Xiaoshan, Hangzhou-Zhejiang highway, Hang Jin thoroughfare highway, Jiangxi, Zhejiang, desolate river in Zhejiang Province railway, connect heart North Road, city and the through street, airport of new old town, Xiaoshan, No. 2 lines of subway in the planning, No. 6 lines, river-crossing tunnels also will run through this district, be the communications centre of the southeast, Hangzhou traffic connection and the door node of striding Jiang Fazhan, traffic accessibility is (C1, C2, C3, C4) better.New city area, money river is close to the Qiantang River simultaneously, and the view characteristic is better (C11) also.

The 3rd then is Binjiang new city area.This area is positioned at the riverine landscape belt (C11) of south, Qiantang River bank, the traffic framework is clearer and more definite, regional traffic facility (C2, C3), drawback is that the existing center of distance is far away, add the rivers natural barrier, can citizen's psychological cognition deficiencies etc. support the leap of the so big distance of down town system, is the problem of a discussion to be studied.

Analyzing the correlativity of future city, Hangzhou population, each key element of economic dispatch on this basis, can future city, preliminary judgement Hangzhou centrosome be the pattern of " two main seven pairs ", and Fig. 7 is the down town system programming and distribution figure of the embodiment of the invention:

---commercial commercial main center, Yan'an road.Mainly refer to axle centered by the road of Yan'an, contain areas such as martial arts circles, lakeside, Wu Shan, also comprising martial arts circles's square commercial affairs subnucleus, celebrating spring road commercial affairs subnucleus, lakeside tourist service subnucleus, the commercial subnucleus in martial arts circles road outside the commercial main nuclear in Yan'an road, is the commercial commercial center of city-level of future city maximum.Not only gather goodish service sector basis, also have very ripe industry situation function allocation and spatial shape layout, the industry pardon is strong, and the industry situation that relates to is also very wide, and service organization concentrates, convenient traffic, infrastructure are perfect.Commercial aggregation extent will be continued to improve future in master center, Yan'an road, promote the commercial facility grade, improve novel industry situation proportion, improve service function, form the modern commerce commercial center that highly gathers.

---the commercial main center of money river new city commercial affairs.Comprise celebrating spring East Road culture subnucleus, the administrative subnucleus of Qian Jianglu, core spaces such as east of a river road exhibitions subnucleus and Binjiang tourist service subnucleus.Future feature is orientated political culture center, city and regional business office center as, has service functions such as administration, trade office, financial instrument, information exhibitions, cultural tour.Progressively become production commander and the economical operation center in a zone.

---Wu Shan conventional commercial sub-center.Wu Shan conventional commercial sub-center to liberating road one band, reaches the Wu Shan square along north, South Road, Yan'an in the south, and east connects mill, Qinghe street, and western adjacent Nan Shanlu responds to and cooperate with each other across a great distance with master center, Yan'an road.Because by the Wu Shan West Lake and the commercial remnants of numerous history, so its conventional commercial sub-center that to be Hangzhou have deep history culture characteristic.The main industry situation characteristic of the commercial sub-center of Wu Shan is tourist shopping and amusement and recreation, attaches most importance to the historical commercial culture intension in old Hangzhou, attracts external tourism crowd and local citizen.In numerous famous brand name brand shop, specialty store, Food Specialties shop are arranged; Amusement and recreation such as coffee bar, bar, teahouse industry and industry situations such as gallery, antique, calligraphy and painting shop, tourist souvenir and old established firm.Inner history culture characteristic block, mill, Qinghe and the outside business offices such as golden square, clear ripple commercial building that gush are built adjacently thirty years of age, and existing traditional commercial culture has modern business office again, and a kind of space perception of blending is at all times arranged.

---station, city commerce and trade sub-center.Commerce and trade sub-center in station, city relies on a large amount of passenger flows at center, transport hub, forms based on medium-to-high grade commercial office building, and food and drink, amusement, shopping are auxilliary, compile the commerce and trade sub-center of mechanisms such as domestic and international major company, financial group, tourism collecting and distributing centre.The industry situation characteristic of station, city sub-center is based on business consumption, and consumer groups mostly are businessman or the visitor that Hangzhoupro is come in the other places, also clerical workforce and regional resident in some office building.

---Wen Sanlu electronic information sub-center.Wen Sanlu electronic information sub-center is based on digital class and electrical type sale service, and its professional service scope covers the whole city, Hangzhou.Large-scale electronic information class market is gathered in this, also has industry situations such as the relevant office trade of many electronic information, technology consultation, professional service to distribute along the street.

---Huanglong's commercial affairs sub-center.Be nuclear with the Stadium of Dragon Sports Center to around the radiation diffusion, main BaoChu Lu, Hang Dalu, Huanglong road and east-west Xixi road, dawn road, temmoku hill path one band that covers south-north direction, it is the metropolis that gathers business office, tourism exhibitions, Leisure Sport, in high-grade commercial office building such as the World Trade Center is arranged, food and drink commerce is also comparatively also flourishing.

---the administrative office in provincial government road sub-center.Be positioned at West Lake northeast side, location for administrative office buildings such as the Zhejiang Province People's Government, Zhejiang Province's Great Hall of the People, based on functions such as administration offices, rely on leading function to gather industry situations such as a collection of business office and technology consultation on every side, form administrative office sub-center.

---the east station sub-center.New Hangzhou east station is the transport hub of Zhejiang Province's maximum, magnetic levitation, subway, high-speed railway train, highway big bus, city bus, canal pleasure-boat be can change to arbitrarily at interior any urban transportation tool, each zone, Hangzhou and even each city, Zhejiang led to easily.Be core with the transport hub, rely on a large amount of regional stream of peoples to form multilayer radiation circle, integrate commercial, commercial affairs, handle official business and travel collecting and distributing.

---Binjiang new city sub-center.Binjiang new city sub-center is the city sub-center in Hangzhou, has born the level shunting center, district of city service industry function in the general layout of big Hangzhou again, is the engine that drives the development of Binjiang new city.A large amount of students that Binjiang higher education garden is not only arranged in this zone also have the inhabitation crowd of Binjiang residence area, and the function of level center, district and sub-center is superimposed, makes the space scale of following Binjiang new city sub-center huge relatively.

Claims (4)

1. based on definite down town system site selecting method of quantitative evaluation, it is characterized in that, comprise the steps:

1) draws the evaluation base map that block, main city data message is arranged according to city plane earth graphic data;

2) make up the quantitative evaluation index system, select evaluation method, weight is set;

3) comprehensive evaluation analysis is carried out in the city; Collect every evaluation index desired data, carry out the single-factor evaluation to estimating base map, carry out superimposedly again, draw comprehensive evaluation analysis figure;

4) according to evaluation result, determine to be fit to the addressing position, space of programming and distribution center system.

2. the definite down town system site selecting method based on quantitative evaluation as claimed in claim 1, it is characterized in that, evaluation method is to be evaluation unit with the grid in the described step 1), soil in the Administrative boundaries of whole urban district is carried out the method for grid division, or be the method for evaluation unit with the planning block.

3. the definite down town system site selecting method based on quantitative evaluation as claimed in claim 1 is characterized in that described step 2) be specially:

2.1) make up the quantitative evaluation index system, index system is divided into overall layer, system layer, state layer and four grade of key element layer, evaluation content comprises that suitability evaluation key element, single-row restriction build mandatory factor;

2.2) choose method for quantitatively evaluating, with analytical hierarchy process down town system addressing is researched and analysed;

2.3) standard of indexization and Weight Determination.

4. the definite down town system site selecting method based on quantitative evaluation as claimed in claim 1 is characterized in that described step 3) is specially:

3.1) handle and estimate map;

3.2) the single-factor index evaluation;

3.3) the multi-stress evaluation analysis.

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